In the First World War history was written by Baron Manfred von Richthofen in his red Fokker tri-plane. The Dr. 1 was the most manoeuvrable of all the aircraft in use and achieved high rates of climb. The Dr. 1 that was delivered to the troops in June 1917 was withdrawn from the front at the end of 1917, but Richthofen continued to fly it until April 1918.